tora_dest.h
上传用户:rrhhcc
上传日期:2015-12-11
资源大小:54129k
文件大小:3k
- /* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */
- /*
- * Copyright (c) 1997 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the Computer Systems
- * Engineering Group at Lawrence Berkeley Laboratory.
- * 4. Neither the name of the University nor of the Laboratory may be used
- * to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
- /* Ported from CMU/Monarch's code*/
- #ifndef __tora_dest_h__
- #define __tora_dest_h__
- class TORANeighbor;
- class toraAgent;
- LIST_HEAD(tn_head, TORANeighbor);
- class TORADest {
- friend class toraAgent;
- public:
- TORADest(nsaddr_t id, Agent *a);
- TORANeighbor* nb_add(nsaddr_t id);
- int nb_del(nsaddr_t id);
- TORANeighbor* nb_find(nsaddr_t id);
- void update_height_nb(TORANeighbor* tn,
- struct hdr_tora_upd *uh);
- void update_height(double TAU, nsaddr_t OID,
- int R, int DELTA, nsaddr_t ID);
- int nb_check_same_ref(void);
- /*
- * Finds the minimum height neighbor whose lnk_stat is DN.
- */
- TORANeighbor* nb_find_next_hop();
- TORANeighbor* nb_find_height(int R);
- TORANeighbor* nb_find_max_height(void);
- TORANeighbor* nb_find_min_height(int R);
- TORANeighbor* nb_find_min_nonnull_height(Height *h);
- void dump(void);
- private:
- LIST_ENTRY(TORADest) link;
- nsaddr_t index; // IP address of destination
- Height height; // 5-tuple height of this node
- int rt_req; // route required flag
- double time_upd; // time last UPD packet was sent
- double time_tx_qry; // time sent last QUERY
- double time_rt_req; // time rt_req last set - JGB
- tn_head nblist; // List of neighbors.
- int num_active; // # active links
- int num_down; // # down stream links
- int num_up; // # up stream links
- toraAgent *agent;
- };
- #endif // __tora_dest_h__